Trusted Septic, Excavation & Grading Services in Sonoma, CA

Located in the heart of Sonoma Valley, Taurian Construction delivers premium septic system installations, replacements, and full-site excavation, grading, and utility trenching services for homeowners and businesses in Sonoma. With owner Mario Taurian’s deep roots in septic work and construction management background, we combine hands-on expertise with strong communication to serve your property with confidence.

Why Choose Taurian Construction in Sonoma?

Owner-Led Expertise & Proven Background

Mario Taurian began working in septic installations and repairs while still in high school, later earning a Construction Management degree from Cal Poly San Luis Obispo. He then worked on infrastructure and large commercial projects (including a 175,000 sq ft multi-level courthouse) before founding Taurian Construction. This unique combination brings you both technical skill and a strong work ethic.

Precision Workmanship for Sonoma’s Terrain

Sonoma’s valley landscapes, historic soil conditions, and site layouts demand precise excavation, trenching, and grading. Our modern equipment and experienced team ensure your site is prepared properly, whether for a new septic system, utility trenching, or land grading.

Clear Communication & No Surprises

At Taurian Construction we believe clear, consistent communication builds trust. From your initial consultation to project completion, we keep you informed, respect your property, and deliver clean, predictable results, without surprise costs or confusion.

Our Services in Sonoma

Septic System Installations

Whether you’re building new or remodeling in Sonoma, we install residential and commercial septic systems that meet code and perform reliably in local soil conditions.

Septic Tank Replacement

When your tank fails or reaches its life span, we safely remove and install a new tank, minimizing disruption to your property in Sonoma.

Septic System Replacement

Full system rebuilds, including tank, leach field and pipes, are handled end-to-end. (Taurian Construction does not pull permits for full replacements, but provides detailed guidance).

Excavation & Grading

From lot clearing to site prep, rough grading, finish grading and driveway base work, we handle Sonoma-area terrain with precision and care.

Utility Trenching

We dig trenches to proper depth and slope for electrical, water, sewer and gas lines—respecting local codes and property layout in Sonoma.

Reach Out for Your Free Consultation

Ready to begin your project in Sonoma? Whether you’re installing a septic system, replacing one, or preparing your lot for construction, Taurian Construction is ready to serve. Contact us today for a free consultation and estimate.

FAQs

What septic system types work best for Sonoma soils?

Because Sonoma Valley has varied soils, such as alluvial terrace soils and volcanic rock foundations in some areas, our site evaluation ensures we select and install the correct system type for reliable performance.

Do you handle hillside excavation or steep-slope grading in Sonoma?

Yes. Our experienced crew and equipment are capable of working on inclines, complex terrain and historic properties in Sonoma’s valley and hillside settings.

How far will you travel for a project in Sonoma?

We focus on Sonoma and the surrounding region, so we can respond quickly, understand local regulations, and keep your project on schedule.